首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1547篇
  免费   55篇
管理学   208篇
民族学   20篇
人口学   135篇
丛书文集   12篇
理论方法论   141篇
现状及发展   1篇
综合类   13篇
社会学   858篇
统计学   214篇
  2023年   13篇
  2022年   11篇
  2021年   21篇
  2020年   35篇
  2019年   42篇
  2018年   55篇
  2017年   58篇
  2016年   47篇
  2015年   40篇
  2014年   42篇
  2013年   301篇
  2012年   57篇
  2011年   67篇
  2010年   41篇
  2009年   39篇
  2008年   63篇
  2007年   40篇
  2006年   42篇
  2005年   35篇
  2004年   31篇
  2003年   29篇
  2002年   43篇
  2001年   32篇
  2000年   28篇
  1999年   25篇
  1998年   20篇
  1997年   12篇
  1996年   21篇
  1995年   24篇
  1994年   20篇
  1993年   10篇
  1992年   12篇
  1991年   18篇
  1990年   19篇
  1989年   14篇
  1988年   11篇
  1987年   12篇
  1986年   8篇
  1985年   19篇
  1984年   11篇
  1983年   14篇
  1982年   16篇
  1981年   14篇
  1980年   12篇
  1979年   12篇
  1978年   9篇
  1976年   11篇
  1975年   9篇
  1974年   6篇
  1972年   5篇
排序方式: 共有1602条查询结果,搜索用时 15 毫秒
991.
A nation's capacity to absorb and produce knowledge is increasingly linked to advancing its social and economic well-being. While the bulk of research attention has focused on knowledge management in the private sector, universities worldwide continue to play pivotal roles in developing the human capability to work with knowledge. This article draws on a qualitative case study of a public flagship, comprehensive university in a developing nation in Southeast Asia to identify existing research capacity strengths and the hopes some academic faculty and administrators have for the future in a resource-limited and politically constrained context. It points out that faculty virtue may be the basis on which research capacity can develop when gaps in organizational processes, physical resources, and outside support exist. The findings have relevance for richer and poorer nations alike, as rapidly changing economic conditions threaten levels of funding to universities around the world.  相似文献   
992.
993.
994.
995.

This study examines the impact, relative importance, and unique predictive validity of changes in a host of job features and other relevant factors on job satisfaction over a 35-year period using data from the 1979 National Longitudinal Survey of Youth cohort (12,686 respondents). The design of our analysis eliminated of the impact of established between-person correlates of job satisfaction (e.g., personality, cognitive ability), thereby providing for direct examination of within-person change in the focal variables. Results using a first-difference regression and a relative weights analysis revealed that changes in intrinsic, social, and extrinsic features corresponded to changes in satisfaction, but with differing magnitudes. Specific features (e.g., different dimensions of the Job Characteristics Model) generally were unique predictors when all variables were considered. Findings regarding the importance of various features substantially deviate from employees’ reports about contributors to job satisfaction and, in some cases, also differ from findings drawn from cross-sectional data.

  相似文献   
996.
Since the rise of the popularity of the Internet, the accessibility of pornography has been a growing concern. One particular concern is the potential risk for addictive behaviors to occur as a result of the ease of viewing online pornographic material. The research presented herein explored online pornography addiction using a media attendance perspective, which allows media critics to examine the needs that people seek to fulfill from engaging with various media. Past studies that have used a media attendance perspective to explore media addiction, rephrased here as problematic media use, have done so using social cognitive theory and the concept of deficient self-regulation. Deficient self-regulation may be experienced by all media consumers and can range from normally impulsive media choices to pathological media choices which may result in detrimental life consequences. Borrowing from this, the current study reevaluated online pornography addiction using deficient self-regulation within a sociocognitive framework of media attendance. Results of our model show deficient self-regulation influences habitual online pornography consumption. Moreover, online pornography use motivated by social needs is perpetuated by deficient self-regulation and may lead to negative life consequences in some individuals. These findings contribute a new perspective and framework for understanding problematic online pornography use.  相似文献   
997.
Adults’ processing of own‐race faces differs from that of other‐race faces. The presence of an “other‐race” feature (ORF) has been proposed as a mechanism underlying this specialization. We examined whether this mechanism, which was previously identified in adults and in 9‐month‐olds, is evident at 3.5 months. Caucasian 3.5‐month‐olds looked longer at a pattern containing a single Asian face among seven Caucasian faces than at a pattern containing a single Caucasian face among seven Asian faces. Homogenous and inverted face control conditions indicated that infants’ preference was not driven by the majority of faces in arrays or by low‐level features. Thus, 3.5‐month‐olds found the presence of an other‐race face among own‐race faces to be more salient than the reverse configuration. This asymmetry suggests sensitivity to an ORF at 3.5 months. Thus, a key mechanism of race‐based processing in adults has an early onset, indicating rapid development of specialization early in life.  相似文献   
998.
The purpose of this study was to identify key institutional characteristics and practices at a historically black college/university (HBCU) that contributed to positive educational experiences for black male student athletes. This mixed methods exploratory study involved the use of a 79-item Student Athlete College Experiences Questionnaire (SACEQ), three focus group interviews, and four individual interviews. Participants in this study included 57 black male football and men’s basketball student athletes at an HBCU in the southeastern US. Institutional theory and the anti-deficit achievement framework were incorporated to highlight effective institutional practices at an HBCU. Findings revealed the presence of a nurturing familial campus climate and purposefully designed institutional programs enhanced black male student athletes’ educational experiences. Implications for policy and practice are discussed.  相似文献   
999.
A growing literature in economics has examined the effect of early childhood health investments on adult human capital formation and labor market outcomes. This study is the first to examine the effect of having been breastfed as an infant on young adult earnings. Using data from the National Longitudinal Study of Adolescent Health (Add Health), ordinary least squares estimates suggest that breastfeeding is associated with a 10–12 % increase in hourly earnings. However, after ensuring common support on observables via propensity score matching and controlling for unmeasured family level heterogeneity common to siblings via family fixed effects, the estimated associations become much smaller and are statistically indistinguishable from zero. We conclude that the benefits of having been breastfed do not appear to extend to the labor market.  相似文献   
1000.
Time use researchers working in least developed countries (LDCs) face difficulties collecting data from illiterate populations who may conceptualize time differently than those in industrialized countries. We identify existing gaps in time use data collection methods and discuss two novel, pictorial methods to collect time use data from these populations. The first method is a modified recall interview modeled on participatory rural appraisal (PRA) methods that asks respondents to place macaroni on pictures of activity categories in proportion to the amount of time spent on that activity during the previous day. The second is a simplified pictorial time diary that uses a timer and sequentially-numbered stickers to re-create the temporal order of activities in 30-min increments. The latter method also avoids recall bias problems. We present time use data collected in 2009 using these methods in a study examining the impacts of water infrastructure on women and children’s time use in rural Ethiopia. In total, we collected information using the first method from 263 household members over age 10, including 167 water collectors, and pilot-tested the pictorial diary approach with 10 adult respondents.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号